Fluid handling – With indicator – register – recorder – alarm or inspection means – Fluid pressure responsive indicator – recorder or alarm
Reexamination Certificate
2008-07-08
2008-07-08
Rivell, John (Department: 3753)
Fluid handling
With indicator, register, recorder, alarm or inspection means
Fluid pressure responsive indicator, recorder or alarm
C475S005000, C477S003000
Reexamination Certificate
active
11116930
ABSTRACT:
A powertrain has an electrically variable hybrid transmission having an electro-hydraulic control system, plurality of electrical power units, and a plurality of torque transmitting mechanisms selectively engageable by the electro-hydraulic control system to provide four forward speed ranges, a neutral condition, an electric low and high speed mode, an electrically variable low and high speed mode, and a hill hold mode. The electro-hydraulic control system includes a multiplexed pressure switch system. The multiplexed pressure switch system of the present invention allows position detection of six torque transmitting mechanism control valves through the use of only four pressure switches.
REFERENCES:
patent: 4070927 (1978-01-01), Polak
patent: 4827806 (1989-05-01), Long et al.
patent: 5601506 (1997-02-01), Long et al.
patent: 5616093 (1997-04-01), Long et al.
patent: 5911244 (1999-06-01), Long et al.
patent: 6382248 (2002-05-01), Long et al.
patent: 6551208 (2003-04-01), Holmes et al.
patent: 7255214 (2007-08-01), Long et al.
patent: 7288039 (2007-10-01), Foster et al.
patent: 7322899 (2008-01-01), Long et al.
patent: 2007/0049442 (2007-03-01), Long et al.
patent: 2007/0117671 (2007-05-01), Long et al.
Foster Michael D.
Long Charles F.
General Motors Corporation
Rivell John
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